Population By Race and Ethnicity in Mercer County, NJ in 2015

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2015, the 368,266 population of Mercer County, New Jersey comprised of 61,197 people who identified as Hispanic (16.62%), and 307,069 people who identified as Non-Hispanic (83.38%).

Race: The White Alone population was the largest racial group in Mercer County, New Jersey with a population of 238,732 (64.83%); Black or African American Alone population was the second largest racial group with a population of 78,944 (21.44%); and Asian Alone was the third largest racial group with a population of 39,238 (10.66%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Mercer County, New Jersey in 2015, with a population of 188,779 (51.26%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 72,393 (19.66%); and the third largest ethnic group was White Alone - Hispanic with a population of 49,953 (13.56%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Mercer, New Jersey.

You can find similar information for other New Jersey counties, and for New Jersey.

See this for other years:
Hispanics and Non Hispanics in Mercer County, NJ in 2015
Total Population:
Race in Mercer County, NJ in 2015
Total Population:
Ethnicity in Mercer County, NJ in 2015
Total Population:
Population By Race in Mercer , NJ in 2015
Race Population Percentage
Black or African American Alone 78,944 21.44%
White Alone 238,732 64.83%
American Indian and Alaska Native Alone 2,281 0.62%
Asian Alone 39,238 10.66%
Native Hawaiian And Pacific Islander Alone 737 0.2%
Two Or More Races 8,334 2.26%
Population By Ethnicity in Mercer , NJ in 2015
Ethnicity Population Percentage
Black or African American Alone - Hispanic 6,551 1.78%
White Alone - Hispanic 49,953 13.56%
American Indian and Alaska Native Alone - Hispanic 1,700 0.46%
Asian Alone - Hispanic 542 0.15%
Native Hawaiian And Pacific Islander Alone - Hispanic 531 0.14%
Two Or More Races - Hispanic 1,920 0.52%
Black or African American Alone - Non Hispanic 72,393 19.66%
White Alone - Non Hispanic 188,779 51.26%
American Indian and Alaska Native Alone - Non Hispanic 581 0.16%
Asian Alone - Non Hispanic 38,696 10.51%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 206 0.06%
Two Or More Races - Non Hispanic 6,414 1.74%